CN110484762A - A kind of method of novel motor rotor Copper-iron alloy material - Google Patents
A kind of method of novel motor rotor Copper-iron alloy material Download PDFInfo
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- CN110484762A CN110484762A CN201910832745.7A CN201910832745A CN110484762A CN 110484762 A CN110484762 A CN 110484762A CN 201910832745 A CN201910832745 A CN 201910832745A CN 110484762 A CN110484762 A CN 110484762A
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- 239000000956 alloy Substances 0.000 title claims abstract description 151
- 229910000640 Fe alloy Inorganic materials 0.000 title claims abstract description 40
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 125
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 101
- 229910017827 Cu—Fe Inorganic materials 0.000 claims abstract description 84
- 239000010949 copper Substances 0.000 claims abstract description 53
- 238000005245 sintering Methods 0.000 claims abstract description 51
- 229910052742 iron Inorganic materials 0.000 claims abstract description 48
- 229910052802 copper Inorganic materials 0.000 claims abstract description 45
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 238000002844 melting Methods 0.000 claims abstract description 22
- 230000008018 melting Effects 0.000 claims abstract description 22
- 229910052786 argon Inorganic materials 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 21
- 230000032683 aging Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 239000004615 ingredient Substances 0.000 claims abstract description 10
- 230000006698 induction Effects 0.000 claims abstract description 8
- 238000009833 condensation Methods 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims abstract description 7
- 229910052709 silver Inorganic materials 0.000 claims abstract description 7
- 239000004332 silver Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 61
- 238000002360 preparation method Methods 0.000 claims description 17
- 239000002826 coolant Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 10
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 229910052684 Cerium Inorganic materials 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052746 lanthanum Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005054 agglomeration Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000002242 deionisation method Methods 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 238000005204 segregation Methods 0.000 abstract description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 238000000889 atomisation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0425—Copper-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1051—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by electric discharge
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a kind of methods of novel motor rotor Copper-iron alloy material, belong to nonferrous materials manufacturing technology field.Mainly comprise the steps that (1) ingredient；(2) vacuum induction melting；(3) mechanical centrifugal is atomized；(4) discharge plasma sintering；(5) ageing treatment；The present invention is by selecting Cu, Fe raw material with high purity, and the silver of addition has good electric conductivity, the solid solubility of iron, silicon and copper is small simultaneously, the conduction of copper rod and heating conduction are influenced minimum, its solid solubility will not change with the change of temperature, therefore, the alloy of Cu, Fe composition has high conduction performance；Make Cu-Fe alloy atomization drop in such a way that mechanical centrifugal is atomized, and atomized drop rapid condensation is made by low temperature high-purity argon gas, the cooling rate of alloy liquid droplet can be increased, overcome the gross segregation of alloy, further increase alloy electromagnetic shielding properties.
Description
Technical field
The invention belongs to nonferrous materials manufacturing technology fields, and in particular to a kind of novel motor rotor copper-iron alloy
The method of material.
Background technique
With rapid development of economy, the mankind get worse the degree of dependence of the energy, also continuous to the demand of the energy
Increase dirty, therefore, the inevitable problem of some mankind also occurs, such as energy waste, shortage of resources and environmental pollution are all
More problems seriously threaten the survival and development of the mankind.Currently, the energy input of China's industry accounts for about the 70% of total energy consumption, and by
Energy consumption caused by motor accounts for about industrial energy consumption total amount 60-70% or so, in addition some other nonindustrial energy consumption of electrical machinery amounts, practical
Energy consumption of electrical machinery amount accounts for 50% of energy total consumption or more, reduces the energy input of motor, improves other efficiency of energy utilization, is directed not only to
It to economic results in society, also will affect the various aspects such as environment, ecology, therefore, further increase service performance, the drop of motor
Low cost and energy consumption have become the hot issue that domestic and international some scholars study.Currently, having had scholar from electronic both at home and abroad
It sets out in terms of the selection of machine rotor material, is reduced in motor start-up procedure by selecting the good material of conductive magnetic waveguide performance
Energy input.
Studies have shown that the rotor of novel energy-conserving asynchronous machine or high-performance Self-starting permanent magnet motor utilizes Cu-Fe alloy material
When material, in order to avoid extraneous electromagnetic signals are to the interference effect of motor, it is desirable that Cu-Fe alloy material should have certain conduction
Rate, while there is certain magnetic permeability again, there is electro-magnetic screen function, and when iron content is higher in Copper-iron alloy material, have
Excellent magnetoresistance, and electromagnetic wave shielding performance is preferable.
For existing Copper-iron alloy material with the increase of Fe content, it is serious that alloy easily forms segregation in process of setting
Tissue, causes iron phase in copper-iron alloy unevenly distributed, reduces alloy conductive rate and magnetic permeability, causes the starting of rotor
Electric current increases, and detent torque is small, reduces the service performance of motor, while will also result in the waste for no reason of the energy.
Summary of the invention
In view of the above problems, the present invention provides a kind of methods of novel motor rotor Copper-iron alloy material.
The technical scheme is that a kind of method of novel motor rotor Copper-iron alloy material, mainly includes following
Step:
(1) ingredient
The primary chemical of Cu-Fe alloy forms and its weight percent are as follows: 49-93% copper, 0.31-0.95% silicon, 0.5-
0.8% manganese, remaining be iron, wherein Cu use electrolytic copper plate, iron use ingot iron, silicon use ferrosilicon, manganese use manganese iron；
(2) vacuum induction melting
The electrolytic copper plate of above-mentioned weight percent is fitted into vaccum sensitive stove, is vacuumized, after copper sheet fusing to be electrolysed, to
Manganese iron is added in vaccum sensitive stove and carries out deoxidation, ingot iron, ferrosilicon is then added into vaccum sensitive stove respectively again, heating rises
Temperature is passed through the argon gas that concentration is 99.99% and is protected, keep the temperature 1-1.5h to 1500-1800 DEG C of progress melting；
(3) mechanical centrifugal is atomized
Aluminium alloy after above-mentioned melting is packed on dish-style atomizer, is sprayed after being mixed in dish-style atomizer and forms spherical shape
Drop is passed through -90~-65 DEG C of high-purity argon gas into dish-style atomizer, makes atomized drop rapid condensation, forms Cu-Fe alloyed powder
Body；
(4) discharge plasma sintering
Above-mentioned Cu-Fe alloy powder is put into discharge plasma sintering furnace, is generated using discharge plasma sintering furnace
TRANSIENT HIGH TEMPERATURE is sintered 1-2h to Cu-Fe alloy powder, and last furnace cooling blow-on obtains the alloy that consistency is 95%-99%
Blank, wherein sintering pressure 20-300MPa, sintering temperature are 800-1500 DEG C.
(5) ageing treatment
At a temperature of ageing treatment, furnace cooling by above-mentioned alloy blank at 230-400 DEG C.
Further, the also included chemical constituent of the Cu-Fe alloy and its weight percent are 0.03-0.07% phosphorus,
0.02-0.04% silver ,≤0.02% sulphur ,≤0.02% aluminium ,≤0.1% carbon.
Further, when carrying out melting in the step (2), rare earth La and Ce is added into aluminium alloy and carries out electromagnetism and stirs
It mixes, wherein the rare earth element of weight percent≤0.02% of weight percent≤0.03%, Ce of La, addition can be with it
He acts synergistically at element, to sufficiently refine the crystal grain of Cu-Fe As-cast Microstructure, reduces the generation of segregation.
Further, when adding Cu-Fe alloy powder into discharge plasma sintering furnace in the step (4), in furnace
Temperature is 800-1500 DEG C, Cu-Fe alloy powder is divided into 3-5 parts first, and electric discharge is added in first part of Cu-Fe alloy powder
It in plasma agglomeration furnace, is stirred with the rate of 180-220r/min, the Cu-Fe that then successively remaining component is added in stirring is closed
Bronze body, and the stirring rate of every part of alloy is successively increased with 35r/min, and the mixing time of every part of Cu-Fe alloy powder is equal
For 30-35min, after all Cu-Fe alloy powders are all added in discharge plasma sintering furnace, by Cu-Fe
Alloy powder adds in batches, makes the internal temperature and even tissue of sintered Cu-Fe alloy blank, the Cu- of preparation is turned up
The comprehensive quality of Fe alloy.
Further, to surface preparation is carried out before ingot iron and electrolytic copper plate melting in the step (2), specifically
Process flow are as follows: cleaned ingot iron and electrolytic copper plate surface respectively using deionized water, by the technical pure after cleaning
Iron and electrolytic copper plate are separately added into acetone soln, and using power 6-8KW, frequency is the ultrasonic wave of 65-85kHz to ingot iron
Surface carries out cleaning 20-30min respectively with electrolytic copper plate, then by after cleaning ingot iron and electrolytic copper plate be respectively put into baking
It is dry in dry cabinet, sandblasting roughening treatment is carried out to ingot iron and electrolytic copper plate surface using steel sand, finally, boron nitride is answered
It closes micro mist and formation wear-resistant coating in Cu crystallizer surface is sprayed on using supersonic flame spraying method, on the one hand remove technical pure
Iron and electrolytic copper plate surface impurity, the purity for the alloy for avoiding impurity effect from preparing；On the other hand, prolonged by spraying of wearable coating
The wearability for increasing alloy has been grown, the service life of alloy is extended.
Further, it is 20-80 μm that the step (3), which forms the partial size of Cu-Fe alloy powder, and oxygen content is less than
300ppm prepares Cu-Fe alloy powder in such a way that mechanical centrifugal is atomized, and it is cold to be passed through -90~-65 DEG C of high-purity argon gas progress
But, this mode can increase alloy cooling rate, reduce segregation, overcome copper-iron alloy Fe content for electromagnetic shielding compared with
Height easily leads to the problem of gross segregation, makes the copper-iron alloy of preparation on the basis of with preferable electro-magnetic screen function, no
It is also easy to produce segregation phenomena.
Further, the Cu-Fe alloy powder is put into discharge plasma sintering stokehold and need to be preheated, specific preheating side
Formula are as follows: firstly, then being filled with the nitrogen 15-20min that flow velocity is 0.3-9L/min into discharge plasma sintering furnace will discharge
The temperature of ion sintering furnace rises to 300-400 DEG C, and the Cu-Fe alloy powder after dividing equally in the manner described above is slowly added to discharge
In plasma agglomeration furnace, after all Cu-Fe alloy powders are all added in discharge plasma sintering furnace, with 60-80 DEG C
Temperature is risen to 800-1500 DEG C by heating rate, by preheating to aforesaid way to Cu-Fe alloy powder, is avoided straight
It connects and is increased to reaction temperature, Cu-Fe alloy powder is caused to generate part burning phenomenon.
Further, the type of cooling uses dual-cooled mode in the step (5), specifically: the alloy of preparation is put
Enter and carry out circulating cooling in coolant liquid, 2-3h was discharged coolant liquid, was passed through stream when alloy temperature is down to 80 DEG C cooling time
The argon gas that speed is 15-30L/min repeats to cool down to alloy, until being down to room temperature, wherein coolant liquid ingredient is water, salt water
Or oil；By dual-cooled, accelerate cooling rate.
Further, in the Cu-Fe alloy of the preparation, Fe constituent content accounts for 5-50%, by changing the content of Fe, mentions
The electric conductivity and magnetic conductivity of high Cu-Fe alloy make have preferable electromagnetic shielding performance using the rotor of this alloy preparation,
Avoid interference of the outer wall electromagnetic signal to motor.
Further, it is used in the step (5) to the alloy staged vibration timeliness after discharge plasma sintering
Reason, specifically: firstly, 60-80 DEG C at a temperature of, when using electric and magnetic oscillation timeliness instrument with the vibration frequency of 1500-2000Hz
Then effect processing 15-20h is warming up to 100-150 DEG C, with the vibration frequency ageing treatment 13-15h of 3000-3500Hz, finally,
It is warming up to 180-230 DEG C, 10-13h is handled with the vibration frequency of 4000-5000Hz, it is cooling；Pass through above-mentioned ageing treatment side
Formula avoids Cu-Fe alloy surface from stomata, crackle occur, collapses damage and fall off and the common deficiencies such as nonuniform organization, reduces Cu-Fe and closes
The oxygen content of gold improves the electric conductivity of Cu-Fe alloy.
The beneficial effects of the present invention are: the present invention provides a kind of method of novel motor rotor Copper-iron alloy material, this
Invention has following advantage:
1, the present invention is by being added into rare earth La and Ce into aluminium alloy, filling during carrying out vacuum induction melting
The crystal grain for dividing refinement Cu-Fe As-cast Microstructure, reduces the generation of segregation, overcomes and contain for the copper-iron alloy Fe of electromagnetic shielding
Amount is higher easily to lead to the problem of gross segregation, meets rotor to the requirement of electromagnetic shielding performance.
2, the present invention makes Cu-Fe alloy atomization drop in such a way that mechanical centrifugal is atomized, and passes through low temperature high-purity argon
Gas makes atomized drop rapid condensation, can increase the cooling rate of alloy liquid droplet, overcomes the gross segregation of alloy, further increases
Alloy electromagnetic shielding properties reduces the energy input in motor start-up procedure.
3, the present invention is handled alloy powder by way of discharge plasma sintering, and right before sintering processes
Cu-Fe alloy powder is preheated, and avoids directly being increased to reaction temperature, causes Cu-Fe alloy powder to generate part scaling loss existing
As influencing the comprehensive performance of product.
4, the present invention is by selecting Cu, Fe raw material with high purity, and the silver added has good electric conductivity, while iron, silicon
Small with the solid solubility of copper, minimum on the conduction of copper rod and heating conduction influence, solid solubility will not change with the change of temperature
Become, therefore, the alloy of Cu, Fe composition has high conduction performance, improves the service performance that New-type electric machine improves motor.
Detailed description of the invention
Fig. 1 is work flow diagram of the invention.
Specific embodiment
Technical solution of the present invention is further discussed in detail with reference to embodiments, but protection scope of the present invention
It is not limited thereto.
Embodiment 1
As shown in Figure 1, a kind of method of novel motor rotor Copper-iron alloy material, mainly comprises the steps that
(1) ingredient
The chemical composition and its weight percent of Cu-Fe alloy are as follows: 93% bronze medal, 0.95% silicon, 0.8% manganese, 0.07% phosphorus,
0.04% silver medal, 0.02% sulphur, 0.02% aluminium, 0.1% carbon, 5% iron, wherein Cu uses electrolytic copper plate, and iron uses ingot iron,
Silicon uses ferrosilicon, and manganese uses manganese iron；
(2) vacuum induction melting
The electrolytic copper plate of above-mentioned weight percent is fitted into vaccum sensitive stove, is vacuumized, after copper sheet fusing to be electrolysed, to
Manganese iron is added in vaccum sensitive stove and carries out deoxidation, then ingot iron, ferrosilicon is added into vaccum sensitive stove respectively, is heated to
1500 DEG C of progress meltings, then add rare earth La and Ce and carry out electromagnetic agitation, wherein the weight percent 0.03% of La,
The rare earth element of the weight percent 0.02% of Ce, addition can act synergistically with other elements, so that sufficiently refinement Cu-Fe is closed
The crystal grain of golden as-cast structure reduces the generation of segregation, is passed through the argon gas that concentration is 99.99% and is protected, keeps the temperature 1h；
(3) mechanical centrifugal is atomized
Aluminium alloy after above-mentioned melting is packed on dish-style atomizer, is sprayed after being mixed in dish-style atomizer and forms spherical shape
Drop is passed through -90 DEG C of high-purity argon gas into dish-style atomizer, makes atomized drop rapid condensation, forms Cu-Fe alloy powder, Cu-
The partial size of Fe alloy powder is 20 μm, oxygen content 300ppm, prepares Cu-Fe alloy powder in such a way that mechanical centrifugal is atomized,
And be passed through -90 DEG C of high-purity argon gas and cooled down, this mode can increase alloy cooling rate, reduce segregation, overcome and be used for
The copper-iron alloy Fe content of electromagnetic shielding is higher easily to lead to the problem of gross segregation, has the copper-iron alloy of preparation preferably
Electro-magnetic screen function on the basis of, be not likely to produce segregation phenomena；
(4) discharge plasma sintering
Above-mentioned Cu-Fe alloy powder is put into discharge plasma sintering furnace, is generated using discharge plasma sintering furnace
TRANSIENT HIGH TEMPERATURE is sintered 1h to Cu-Fe alloy powder, and last furnace cooling blow-on obtains the alloy blank that consistency is 95%,
In, sintering pressure 20MPa, sintering temperature is 800 DEG C.
(5) ageing treatment
By above-mentioned alloy blank 230 DEG C at a temperature of ageing treatment, using dual-cooled mode, specifically: will
The alloy of preparation, which is put into coolant liquid, carries out circulating cooling, and cooling time, cooling was discharged when alloy temperature is down to 80 DEG C in 2h
Liquid is passed through the argon gas that flow velocity is 15L/min and repeats to cool down to alloy, until is down to room temperature, wherein coolant liquid ingredient is
Water, salt water or oil；By dual-cooled, accelerate cooling rate.
Embodiment 2
As shown in Figure 1, a kind of method of novel motor rotor Copper-iron alloy material, mainly comprises the steps that
(1) ingredient
The chemical composition and its weight percent of Cu-Fe alloy are as follows: 64% bronze medal, 0.37% silicon, 0.5% manganese, 0.03% phosphorus,
0.02% silver medal, 0.015% sulphur, 0.015% aluminium, 0.05% carbon, 35% iron, wherein Cu uses electrolytic copper plate, and iron uses technical pure
Iron, silicon use ferrosilicon, and manganese uses manganese iron；
(2) vacuum induction melting
The electrolytic copper plate of above-mentioned weight percent is fitted into vaccum sensitive stove, is vacuumized, after copper sheet fusing to be electrolysed, to
Manganese iron is added in vaccum sensitive stove and carries out deoxidation, then ingot iron, ferrosilicon is added into vaccum sensitive stove respectively, is heated to
1600 DEG C of progress meltings, then add rare earth La and Ce and carry out electromagnetic agitation, wherein the weight percent 0.02% of La,
The rare earth element of the weight percent 0.01% of Ce, addition can act synergistically with other elements, so that sufficiently refinement Cu-Fe is closed
The crystal grain of golden as-cast structure reduces the generation of segregation, is passed through the argon gas that concentration is 99.99% and is protected, keeps the temperature 1.3h；
(3) mechanical centrifugal is atomized
Aluminium alloy after above-mentioned melting is packed on dish-style atomizer, is sprayed after being mixed in dish-style atomizer and forms spherical shape
Drop is passed through -85 DEG C of high-purity argon gas into dish-style atomizer, makes atomized drop rapid condensation, forms Cu-Fe alloy powder, Cu-
The partial size of Fe alloy powder is 50 μm, oxygen content 200ppm, prepares Cu-Fe alloy powder in such a way that mechanical centrifugal is atomized,
And be passed through -85 DEG C of high-purity argon gas and cooled down, this mode can increase alloy cooling rate, reduce segregation, overcome and be used for
The copper-iron alloy Fe content of electromagnetic shielding is higher easily to lead to the problem of gross segregation, has the copper-iron alloy of preparation preferably
Electro-magnetic screen function on the basis of, be not likely to produce segregation phenomena；
(4) discharge plasma sintering
Above-mentioned Cu-Fe alloy powder is put into discharge plasma sintering furnace, is generated using discharge plasma sintering furnace
TRANSIENT HIGH TEMPERATURE is sintered 1.5h to Cu-Fe alloy powder, and last furnace cooling blow-on obtains the alloy blank that consistency is 96%,
Wherein, sintering pressure 150MPa, sintering temperature are 1200 DEG C.
(5) ageing treatment
By above-mentioned alloy blank 320 DEG C at a temperature of ageing treatment, using dual-cooled mode, specifically: will
The alloy of preparation, which is put into coolant liquid, carries out circulating cooling, and cooling time, 2.5h was discharged cold when alloy temperature is down to 80 DEG C
But liquid is passed through the argon gas that flow velocity is 20L/min and repeats to cool down to alloy, until is down to room temperature, wherein coolant liquid ingredient is
Water, salt water or oil；By dual-cooled, accelerate cooling rate.
Embodiment 3
As shown in Figure 1, a kind of method of novel motor rotor Copper-iron alloy material, mainly comprises the steps that
(1) ingredient
The chemical composition and its weight percent of Cu-Fe alloy are as follows: 49% bronze medal, 0.31% silicon, 0.5% manganese, 0.03% phosphorus,
0.02% silver medal, 0.02% sulphur, 0.02% aluminium, 0.1% carbon, 50% iron, wherein Cu uses electrolytic copper plate, and iron uses ingot iron,
Silicon uses ferrosilicon, and manganese uses manganese iron；
(2) vacuum induction melting
The electrolytic copper plate of above-mentioned weight percent is fitted into vaccum sensitive stove, is vacuumized, after copper sheet fusing to be electrolysed, to
Manganese iron is added in vaccum sensitive stove and carries out deoxidation, then ingot iron, ferrosilicon is added into vaccum sensitive stove respectively, is heated to
1800 DEG C of progress meltings, then add rare earth La and Ce and carry out electromagnetic agitation, wherein the weight percent 0.01% of La,
The rare earth element of the weight percent 0.01% of Ce, addition can act synergistically with other elements, so that sufficiently refinement Cu-Fe is closed
The crystal grain of golden as-cast structure reduces the generation of segregation, is passed through the argon gas that concentration is 99.99% and is protected, keeps the temperature 1.5h；
(3) mechanical centrifugal is atomized
Aluminium alloy after above-mentioned melting is packed on dish-style atomizer, is sprayed after being mixed in dish-style atomizer and forms spherical shape
Drop is passed through -65 DEG C of high-purity argon gas into dish-style atomizer, makes atomized drop rapid condensation, forms Cu-Fe alloy powder, Cu-
The partial size of Fe alloy powder is 80 μm, oxygen content 100ppm, prepares Cu-Fe alloy powder in such a way that mechanical centrifugal is atomized,
And be passed through -65 DEG C of high-purity argon gas and cooled down, this mode can increase alloy cooling rate, reduce segregation, overcome and be used for
The copper-iron alloy Fe content of electromagnetic shielding is higher easily to lead to the problem of gross segregation, has the copper-iron alloy of preparation preferably
Electro-magnetic screen function on the basis of, be not likely to produce segregation phenomena；
(4) discharge plasma sintering
Above-mentioned Cu-Fe alloy powder is put into discharge plasma sintering furnace, is generated using discharge plasma sintering furnace
TRANSIENT HIGH TEMPERATURE is sintered 2h to Cu-Fe alloy powder, and last furnace cooling blow-on obtains the alloy blank that consistency is 99%,
In, sintering pressure 300MPa, sintering temperature is 1500 DEG C.
(5) ageing treatment
By above-mentioned alloy blank 400 DEG C at a temperature of ageing treatment, using dual-cooled mode, specifically: will
The alloy of preparation, which is put into coolant liquid, carries out circulating cooling, and cooling time, cooling was discharged when alloy temperature is down to 80 DEG C in 3h
Liquid is passed through the argon gas that flow velocity is 30L/min and repeats to cool down to alloy, until is down to room temperature, wherein coolant liquid ingredient is
Water, salt water or oil；By dual-cooled, accelerate cooling rate.
Embodiment 4
Embodiment 4 is substantially the same manner as Example 3, the difference is that:
When Cu-Fe alloy powder being added into discharge plasma sintering furnace in the step (4), in-furnace temperature 1500
DEG C, Cu-Fe alloy powder is divided into 5 parts first, and first part of Cu-Fe alloy powder is added in discharge plasma sintering furnace,
It is stirred with the rate of 220r/min, then successively the Cu-Fe alloy powder of remaining component is added in stirring, and every part of alloy
Stirring rate is successively increased with 35r/min, and the mixing time of every part of Cu-Fe alloy powder is 35min, as all Cu-Fe
After alloy powder is all added in discharge plasma sintering furnace, by adding Cu-Fe alloy powder in batches, make to burn
The comprehensive quality of the Cu-Fe alloy of preparation is turned up in the internal temperature and even tissue of Cu-Fe alloy blank after knot.
Embodiment 5
Embodiment 5 is substantially the same manner as Example 4, the difference is that:
Surface preparation, specific process flow are carried out before to ingot iron and electrolytic copper plate melting in the step (2)
Are as follows: ingot iron and electrolytic copper plate surface are cleaned respectively using deionized water, by after cleaning ingot iron and electrolysis
Copper sheet is separately added into acetone soln, and using power 8KW, the ultrasonic wave that frequency is 85kHz is to ingot iron and electrolytic copper plate point
Other surface carries out cleaning 30min, then by after cleaning ingot iron and electrolytic copper plate be respectively put into drying box body dry, benefit
Sandblasting roughening treatment is carried out to ingot iron and electrolytic copper plate surface with steel sand, finally, boron nitride composite micro-powder is used Supersonic
Fast flame spraying is sprayed on Cu crystallizer surface and forms wear-resistant coating, on the one hand removes ingot iron and electrolytic copper plate table
Face impurity, the purity for the alloy for avoiding impurity effect from preparing；On the other hand, it is extended by spraying of wearable coating and increases alloy
Wearability extends the service life of alloy.
Embodiment 6
Embodiment 6 is substantially the same manner as Example 5, the difference is that:
The Cu-Fe alloy powder is put into discharge plasma sintering stokehold and need to be preheated, specific preheating method are as follows: first
First, the nitrogen 20min that flow velocity is 9L/min is filled with into discharge plasma sintering furnace, then, by the temperature of discharge ion sintering furnace
Degree rises to 400 DEG C, and the Cu-Fe alloy powder after dividing equally in the manner described above is slowly added in discharge plasma sintering furnace, to
After all Cu-Fe alloy powders are all added in discharge plasma sintering furnace, temperature is risen to 80 DEG C of heating rate
It 1500 DEG C, by being preheated to aforesaid way to Cu-Fe alloy powder, avoids directly being increased to reaction temperature, cause
Cu-Fe alloy powder generates part burning phenomenon.
Embodiment 7
Embodiment 7 is substantially the same manner as Example 6, the difference is that:
Using to the alloy staged vibration ageing treatment after discharge plasma sintering, specifically: firstly, in 80 DEG C of temperature
Under degree, 150 DEG C then are warming up to the vibration frequency ageing treatment 20h of 2000Hz using electric and magnetic oscillation timeliness instrument, with
The vibration frequency ageing treatment 15h of 3500Hz handles 13h finally, being warming up to 230 DEG C with the vibration frequency of 5000Hz, cooling is
It can；By above-mentioned ageing treatment mode, avoids Cu-Fe alloy surface from stomata, crackle occur, collapses damage and fall off with nonuniform organization etc.
Common deficiency reduces the oxygen content of Cu-Fe alloy, improves the electric conductivity of Cu-Fe alloy.
Test example
By novel motor rotor prepared by the embodiment of the present invention 1-7 with Copper-iron alloy material correlation performance parameters such as
Shown in table 1:
Table 1: novel motor rotor Copper-iron alloy material
It can be obtained by table 1, the conductivity of CuFe5 is 3.15 × 106S/m, relative permeability are 51 μr；The conduction of CuFe25
Rate is 3.23 × 106S/m, relative permeability are 56 μr；The conductivity of CuFe50 is 3.36 × 106S/m, relative permeability 65
μr, in the Copper-iron alloy material prepared by the present invention for novel motor rotor, Copper-iron alloy material conductivity average value is
3.25×106S/m, the average value of relative permeability are 57.3 μr, it follows that prepared by the method copper-iron alloy has
Higher conductivity and relative permeability make rotor have preferable electromagnetic shielding performance, reduce in motor start-up procedure
Energy input.
Claims (9)
1. a kind of method of novel motor rotor Copper-iron alloy material, which is characterized in that mainly comprise the steps that
(1) ingredient
The primary chemical of Cu-Fe alloy forms and its weight percent are as follows: 49-93% copper, 0.31-0.95% silicon, 0.5-0.8%
Manganese, remaining be iron, wherein Cu use electrolytic copper plate, iron use ingot iron, silicon use ferrosilicon, manganese use manganese iron；
(2) vacuum induction melting
The electrolytic copper plate of above-mentioned weight percent is fitted into vaccum sensitive stove, is vacuumized, after copper sheet fusing to be electrolysed, to vacuum
Manganese iron is added in induction furnace and carries out deoxidation, ingot iron, ferrosilicon is then added into vaccum sensitive stove respectively again, is heated to
1500-1800 DEG C of progress melting is passed through the argon gas that concentration is 99.99% and is protected, keep the temperature 1-1.5h；
(3) mechanical centrifugal is atomized
Aluminium alloy after above-mentioned melting is packed on dish-style atomizer, is sprayed after being mixed in dish-style atomizer and forms spherical liquid
Drop, -90~-65 DEG C of high-purity argon gas are passed through into dish-style atomizer, make atomized drop rapid condensation, form Cu-Fe alloy powder；
(4) discharge plasma sintering
Above-mentioned Cu-Fe alloy powder is put into discharge plasma sintering furnace, is generated using discharge plasma sintering furnace instantaneous
High temperature is sintered 1-2h to Cu-Fe alloy powder, and last furnace cooling blow-on obtains the alloy blank that consistency is 95%-99%,
Wherein, sintering pressure 20-300MPa, sintering temperature are 800-1500 DEG C.
(5) ageing treatment
At a temperature of ageing treatment, furnace cooling by above-mentioned alloy blank at 230-400 DEG C.
2. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1, which is characterized in that described
The also included chemical constituent of Cu-Fe alloy and its weight percent are 0.03-0.07% phosphorus, 0.02-0.04% silver ,≤0.02%
Sulphur ,≤0.02% aluminium ,≤0.1% carbon.
3. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1, which is characterized in that described
When carrying out melting in step (2), rare earth La and Ce are added into aluminium alloy and carries out electromagnetic agitation, wherein the weight percent of La
Weight percent≤0.02% than≤0.03%, Ce.
4. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1, which is characterized in that described
When adding Cu-Fe alloy powder into discharge plasma sintering furnace in step (4), in-furnace temperature is 800-1500 DEG C, first
Cu-Fe alloy powder is divided into 3-5 parts, and first part of Cu-Fe alloy powder is added in discharge plasma sintering furnace, with 180-
The rate of 220r/min is stirred, and then successively the Cu-Fe alloy powder of remaining component is added in stirring, and every part of alloy stirs
It mixes rate to successively increase with 35r/min, and the mixing time of every part of Cu-Fe alloy powder is 30-35min, as all Cu-Fe
After alloy powder is all added in discharge plasma sintering furnace.
5. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1, which is characterized in that described
Surface preparation, specific process flow are carried out before to ingot iron and electrolytic copper plate melting in step (2) are as follows: utilize deionization
Water cleans ingot iron and electrolytic copper plate surface respectively, by after cleaning ingot iron and electrolytic copper plate be separately added into third
In ketone solution, using power 6-8KW, the ultrasonic wave that frequency is 65-85kHz is distinguished surface to ingot iron and electrolytic copper plate and is carried out
Clean 20-30min, then by after cleaning ingot iron and electrolytic copper plate be respectively put into drying box body dry, utilize steel sand
Sandblasting roughening treatment is carried out to ingot iron and electrolytic copper plate surface, finally, boron nitride composite micro-powder is used supersonic flame
Spray coating method is sprayed on Cu crystallizer surface and forms wear-resisting composite coating.
6. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1, which is characterized in that described
The partial size that step (3) forms Cu-Fe alloy powder is 20-80 μm, and oxygen content is less than 300ppm.
7. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1 or 4, which is characterized in that
The Cu-Fe alloy powder is put into discharge plasma sintering stokehold and need to be preheated, specific preheating method are as follows: firstly, to electric discharge
The nitrogen 15-20min that flow velocity is 0.3-9L/min is filled in plasma agglomeration furnace, then, by the temperature of discharge ion sintering furnace
300-400 DEG C is risen to, the Cu-Fe alloy powder after dividing equally in the manner described above is slowly added in discharge plasma sintering furnace,
After all Cu-Fe alloy powders are all added in discharge plasma sintering furnace, with 60-80 DEG C of heating rate by temperature liter
To 800-1500 DEG C.
8. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1, which is characterized in that described
In step (5) type of cooling use dual-cooled mode, specifically: the alloy of preparation is put into coolant liquid recycle it is cold
But, coolant liquid is discharged when alloy temperature is down to 80 DEG C in 2-3h cooling time, is passed through the argon gas that flow velocity is 15-30L/min
Alloy is repeated to cool down, until being down to room temperature.
9. a kind of method of novel motor rotor Copper-iron alloy material according to claim 1, which is characterized in that described
In the Cu-Fe alloy of preparation, Fe constituent content accounts for 5-50%.
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